The
adult head.
Anterior aspect.
After Figure 1 on page 232 from Bryant (1978).
P. J. Bryant. Pattern formation in imaginal discs. In M. Ashburner and T. R. F. Wright,
editors, The Genetics and Biology of Drosophila, volume 2c, chapter 22, pages 229--335.
Academic Press, 1978.
Copyright 1978 by ACADEMIC PRESS INC. (LONDON) LTD.
Used with kind permission from Academic Press.
See http://www.academicpress.com/ .
